JPS63117825A - Sheet feeding device - Google Patents
Sheet feeding deviceInfo
- Publication number
- JPS63117825A JPS63117825A JP26306186A JP26306186A JPS63117825A JP S63117825 A JPS63117825 A JP S63117825A JP 26306186 A JP26306186 A JP 26306186A JP 26306186 A JP26306186 A JP 26306186A JP S63117825 A JPS63117825 A JP S63117825A
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- sheets
- sensor
- feeding device
- displaced
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000006073 displacement reaction Methods 0.000 claims abstract description 6
- 238000001514 detection method Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Controlling Sheets Or Webs (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
イ、発明の目的
〔産業上の利用分野〕
本発明は、例えば複写機やプリンタ等のシート収納部か
ら複写材シー１− （以下、シートと略称する）を−・
枚ずつ給送するシート給送装置に関する。特に、そのシ
ート収納部のシート残量検知に関するものである。DETAILED DESCRIPTION OF THE INVENTION A. Object of the invention [Industrial field of application] The present invention provides a method for transferring a copy material sheet 1- (hereinafter abbreviated as a sheet) from a sheet storage section of a copying machine, a printer, etc.
The present invention relates to a sheet feeding device that feeds sheets one by one. In particular, it relates to detecting the remaining amount of sheets in the sheet storage section.
複写機・プリンタ等においては、シート収納部のシート
を常に切らさないようにする必要がある。そのため、シ
ート収納部のシー）・残量あるいは有無を検知して、シ
ート補給予告あるいはシート無しの表示を出し、シート
の補充追加を促すようにした袋打がある。2. Description of the Related Art In copying machines, printers, etc., it is necessary to always ensure that the sheet storage section does not run out of sheets. For this reason, there is a system that detects the remaining amount or presence of sheets in the seat storage section and issues a notice of sheet replenishment or an indication that there are no sheets, prompting the replenishment of additional sheets.
従来、上記のような装置として１回動自在なアームをシ
ート」−に当接させ、アームの回動軸上に固設された遮
光板に対向した位置にシート無し予告用のフォトセンサ
およびシート無し検知用のセンサを配設している。Conventionally, as for the above-mentioned device, an arm that can rotate once is brought into contact with a seat, and a photo sensor for notifying the seat and a seat are placed at a position opposite to a light-shielding plate fixed on the rotation axis of the arm. A sensor is installed to detect absence.
そして、シートの積＋１あ量の変化に応じて回動変位す
る遮光板による１−記センサの遮光の有無により、シー
ト無し予告あるいはシート無し表示を行っている。Then, depending on whether or not the 1- sensor is shielded from light by the light-shielding plate which is rotationally displaced in response to changes in the sheet product +1 amount, a no-sheet notice or no-sheet display is performed.
従来のシート給送装置は上記のように構成されているた
め、複数の子告レベルを設定するには、その数だけセン
サを設けることが必要で、構成が複雑で高価となる。ま
た、シート無し予告あるいはシート無し表示検知に係る
遮光板の微少な変位量を検知するためには、各センサの
取イ」位置の厳密な調整が必要であり、検知精度が低い
などの問題点があった。Since the conventional sheet feeding device is configured as described above, in order to set a plurality of warning levels, it is necessary to provide the same number of sensors, which makes the configuration complicated and expensive. In addition, in order to detect minute displacements of the light-shielding plate related to no-sheet notice or no-sheet indication detection, strict adjustment of the position of each sensor is required, resulting in problems such as low detection accuracy. was there.
本発明は上記の問題点を解消するためになされたもので
、センサの取付位置精度の厳密な調整を必要とすること
なく、複数の子告レベルの設定に１つのセンサで対応で
きる検知精度の高いシート給送装置を得ることを目的と
する。The present invention has been made to solve the above problems, and has a detection accuracy that allows a single sensor to handle multiple detection levels without requiring strict adjustment of sensor mounting position accuracy. The purpose is to obtain a high sheet feeding device.
口、発明の構成
〔問題点を解決するための手段〕
本発明は、シート積載板がシートの積載量に応じて変位
し最」二位のシートを所定の給紙位置に常に保つように
構成されたシート収納部と、前記シート収納部からシー
トを一枚ずつ給送するシーｉ・給送部とを有するシート
給送装置において、前記シー］・）ｈ載板の変位に追従
して変位自在な支持部材と、前記支持部材に固設された
センサと、前記支持部材に対して相対変位自在に保持さ
れ一端部が前記最−１−位のシートに当接し他端部に前
記センサの遮光部を有するレバー部材とを具備したこと
を特徴とするシート給送装器である。Summary: Structure of the Invention [Means for Solving the Problems] The present invention is configured such that the sheet stacking plate is displaced in accordance with the amount of sheets loaded and always keeps the second highest sheet at a predetermined paper feeding position. In the sheet feeding device, the sheet feeding device includes a sheet storage section in which the sheets are stored one by one, and a sheet feeding section that feeds sheets one by one from the sheet storage section. a movable support member; a sensor fixed to the support member; and a sensor that is held movably relative to the support member, one end of which abuts the most sheet, and the other end of which is attached to the sensor. The sheet feeding device is characterized by comprising a lever member having a light shielding portion.
本発明におけるシート給送装置は、最上位のシートにゝ
ｌ′＋ ４１ｊ するｌ／八一部材によって、シート積
載板の変位に追従して変位する支持部材に固設したセン
サを遮光することにより、積載シートの厚みを検知する
ことができ、高精度にシート材料を検知する。In the sheet feeding device of the present invention, a sensor fixed to a support member that is displaced following the displacement of the sheet stacking plate is shielded from light by an l/81 member attached to the uppermost sheet. , the thickness of the stacked sheets can be detected, and the sheet material can be detected with high precision.
以下、本発明の実施例を図面について説明する。図にお
いて、カセット１内には、付勢部材２により給送ローラ
３に対して付勢きれた積載板４十に、シート５が積載さ
れている。」−配付勢部材２は図示の圧縮ばねの他、等
価な手段でもよい。Embodiments of the present invention will be described below with reference to the drawings. In the figure, within the cassette 1, sheets 5 are stacked on a stacking plate 40 which is fully biased against the feeding roller 3 by the biasing member 2. ”-The biasing member 2 may be a compression spring as shown, or an equivalent means.
支持部材６は積載板４の変位に追従して変位するように
、装置本体に配設された保持手段７に保持されている。The support member 6 is held by a holding means 7 provided in the main body of the apparatus so as to be displaced following the displacement of the loading plate 4.
この支持部材６の一端側は積載板４に当接し他端側には
ラインセンサ８が固設されている。One end of this support member 6 is in contact with the loading plate 4, and a line sensor 8 is fixed to the other end.
また、上記支持部材６には、レバー部材９がピン６ａと
長孔９ａとによって相対変位自在に保持されており、こ
の一端側は最上位のシートに当接し他端側にはラインセ
ンサ８の遮光部１０を有している。Further, a lever member 9 is held on the support member 6 so as to be relatively displaceable by a pin 6a and a long hole 9a, and one end of the lever member 9 is in contact with the uppermost sheet, and the other end is a lever member 9 with a line sensor 8. It has a light shielding part 10.
つぎに動作について説明する。シート積載量に応じて積
載板４が変位すると、この変位に追従して支持部材６が
矢示方向に変位し、遮光部１０で遮光されるラインセン
サ８の範囲が変りラインセンサの出力状況が変化する。Next, the operation will be explained. When the stacking plate 4 is displaced according to the sheet loading amount, the support member 6 is displaced in the direction of the arrow following this displacement, and the range of the line sensor 8 that is shielded from light by the light shielding part 10 changes, and the output status of the line sensor changes. Change.
そこで、上記ラインセンサ８の出力Ｖｘを所定の設定レ
ベルＶｃと比較回路１１によって比較することにより、
シート無し予告あるいはシート無しの信号を表示手段１
２に出力することができる。Therefore, by comparing the output Vx of the line sensor 8 with a predetermined setting level Vc by the comparison circuit 11,
Means 1 for displaying a no-sheet notice or a no-sheet signal
It can be output to 2.
ハ、発明の効果
以−１−のように、本発明によれば、積載シートの最」
−位レベルを検知するのではなく、積載シートの厚みを
検知するように構成したので、複雑な調整を必要とする
ことなく、複数の子告レベルの設定に対して簡単に対応
でき、高精度にシート残量を検知することができる効果
がある。C. Effects of the Invention As described in -1-, according to the present invention, the first part of the stack sheet is
The structure is configured to detect the thickness of the stacked sheets rather than the - level, so it can easily respond to multiple child level settings without the need for complicated adjustments, resulting in high accuracy. This has the effect of being able to detect the remaining amount of sheets.
第１図は本発明の一実施例によるシート給送装置品を示
す横断面図、第２図は表示回路系のブロック図である。
４・・・積りＩ＆板、５・・・シート、６・・・支持部
材、８・・・ラインセンサ、９・・・レバー部材、１０
・・・遮光部。FIG. 1 is a cross-sectional view showing a sheet feeding device according to an embodiment of the present invention, and FIG. 2 is a block diagram of a display circuit system. 4... Load I & board, 5... Sheet, 6... Support member, 8... Line sensor, 9... Lever member, 10
...shading part.
Claims (1)
上位のシートを所定の給紙位置に常に保つように構成さ
れたシート収納部と、 前記シート収納部からシートを一枚ずつ給送するシート
給送部とを有するシート給送装置において、 前記シート積載板の変位に追従して変位自在な支持部材
と、 前記支持部材に固設されたセンサと、 前記支持部材に対して相対変位自在に保持され一端部が
前記最上位のシートに当接し他端部に前記センサの遮光
部を有するレバー部材と、 を具備したことを特徴とするシート給送装置。(1) A sheet storage section configured such that a sheet stacking plate is displaced according to the loaded amount of sheets to always keep the topmost sheet at a predetermined paper feeding position, and sheets are fed one by one from the sheet storage section. A sheet feeding device having a sheet feeding section for feeding sheets, comprising: a support member displaceable following displacement of the sheet stacking plate; a sensor fixed to the support member; and a sensor fixed to the support member; A sheet feeding device comprising: a lever member which is held movably and has one end abutting the uppermost sheet and the other end having a light shielding portion for the sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61263061A JPH0717288B2 (en) | 1986-11-05 | 1986-11-05 | Sheet feeding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61263061A JPH0717288B2 (en) | 1986-11-05 | 1986-11-05 | Sheet feeding device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63117825A true JPS63117825A (en) | 1988-05-21 |
| JPH0717288B2 JPH0717288B2 (en) | 1995-03-01 |
Family
ID=17384306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61263061A Expired - Fee Related JPH0717288B2 (en) | 1986-11-05 | 1986-11-05 | Sheet feeding device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0717288B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02120453U (en) * | 1989-03-15 | 1990-09-28 | ||
| US5572630A (en) * | 1992-12-10 | 1996-11-05 | Minolta Camera Kabushiki Kaisha | Image forming apparatus |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5767439A (en) * | 1980-10-08 | 1982-04-24 | Toshiba Corp | Detector for number of form |
-
1986
- 1986-11-05 JP JP61263061A patent/JPH0717288B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5767439A (en) * | 1980-10-08 | 1982-04-24 | Toshiba Corp | Detector for number of form |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02120453U (en) * | 1989-03-15 | 1990-09-28 | ||
| US5572630A (en) * | 1992-12-10 | 1996-11-05 | Minolta Camera Kabushiki Kaisha | Image forming apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0717288B2 (en) | 1995-03-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |